Magdrive to save fuel

Tips, advice and tips to lower your consumption, processes or inventions as unconventional engines: the Stirling engine, for example. Patents improving combustion: water injection plasma treatment, ionization of the fuel or oxidizer.
Bougonnator
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by Bougonnator » 20/02/08, 14:55

Hello,
By storing the energy recovered during deceleration in a battery and which restores it in an auxiliary electric motor, you have just invented ... the Toyota Prius!
Version 3 with the Peltier effect module, I grant you.
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by Capt_Maloche » 20/02/08, 15:02

Remundo wrote:Assuming that there is no surunity with H2 : Cheesy: , don't you think that pneumatic or mechanical storage (torsion spring for example) is much simpler and efficient :?:


I say that it is necessary to recover the thermal energy at the exhaust and on the cooling circuit which represents ... how much energy wasted already in% on the primary energy fuel?

There is Pelletier with a low yield
There is Stirling with a yield of around 40% to be reused mechanically (over-supply, direct drive, air compression ...) or coupled to an electric generator

If there is indeed a buisness to set up today, it is the photovoltaic fields for the production of hydrogen,

Directly used in a fuel cell on a vehicle the efficiency goes from 50 to 70%, remains the joule and engine losses

Techno is ready, what are we waiting for? uh .. ah yes that's right
- 40% yield sensors
- Storage of H2 at low pressure

Weird, the announcements follow each other but do not succeed ...
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by Christophe » 20/02/08, 15:10

well yeah :) (and the most recent efficient dynamics bmw).

But the idea was to use H2 but in the end I think the "all electric" performance is more interesting ...

The only advantage of H2: we can store more energy ...

ps: I just ordered the peltier cell, any ideas for making a test bench?

Specifications

* I max .: 6.0A
* delta T max .: 67 ° C
* voltage: 15.4V
* Q max .: 15.4V
* number of couples: 127
* Melcor type: CP1.4-127-06L
* Dimensions: 40 40 x x 3.8mm
* Weight: 21.8g
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by Christophe » 20/02/08, 15:16

Capt_Maloche wrote:If there is indeed a buisness to set up today, it is the photovoltaic fields for the production of hydrogen,


By replacing "photovoltaic" by "thermodynamic solar" I will agree with you ... because given the rather poor overall efficiency of electrolysis, it is better to start from an efficient "primary" efficiency (50 to 60% against 10 at 15%) ...

JL Perrier made H2 directly by chemical reaction at high temperature, so not even electrolysis.

Capt_Maloche wrote:Techno is ready, what are we waiting for? uh .. ah yes that's right
- 40% yield sensors
- Storage of H2 at low pressure

Weird, the announcements follow each other but do not succeed ...


+1 :) but on the 40% sensor do you have more info?

Anyway, for a project to succeed right now, you shouldn't be looking for the best technological return but the best financial return, right?
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by Christophe » 20/02/08, 15:23



Tell me if I'm wrong but on the 2nd light blue curve graph (15A) we have, for 40 ° C of delta: 48W of "cold". If the cell is supplied with 15V (see graph 1) we therefore obtain a "cold" efficiency of 21.3% which is really not bad, isn't it?

If the effect is easily reversible, it's excellent !! (better than most small generator less wear)

I can't wait for the cell :)
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by jonule » 20/02/08, 15:46

Well, the first curve is the opposite, right?
if you look for example at the purple curve, at Dt of 30 ° C you have 12V.
but beware these are extrapolations: look at Dt = 0 ° C they produce current which is impossible (well I mean voltage ;-)


for bmw it is mainly an announcement effect ... it will come out in 10 years, and by then they will have time to make announcements again ...
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by Remundo » 20/02/08, 16:06

Christophe wrote:By replacing "photovoltaic" by "thermodynamic solar" I will agree with you ... because given the rather poor overall efficiency of electrolysis, it is better to start from an efficient "primary" efficiency (50 to 60% against 10 at 15%) ...

JL Perrier made H2 directly by chemical reaction at high temperature, so not even electrolysis.


I am still : Cheesy: ) in Christophe's opinion ...

On thermodynamic solar, I have things under the elbow that are waiting ... you will see, it's nice!

@+
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by Remundo » 20/02/08, 16:12

Hello my favorite "well-trimmed" bearded man! 8)

Capt_Maloche wrote:I say that it is necessary to recover the thermal energy at the exhaust and on the cooling circuit which represents ... how much energy wasted already in% on the primary energy fuel?
- 40% yield sensors
- Storage of H2 at low pressure

Weird, the announcements follow each other but do not succeed ...


Recover from exhaust and cooling, why not. With water at 100 ° C, we can still draw 25% of mechanical energy at room temperature as a cold source ... but it's really hard to put that in a "toto". It is a combined cycle technology inspired by what already exists in power plants for Brayton or Rankine combined with a secondary steam cycle.

For efficient thermal sensors even at high temperature, I will have something new soon ... at least as heavy as my PRBC concept as soon as these gentlemen from the INPI / defense give me the green light ...

@+
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by Christophe » 20/02/08, 16:23

jonule wrote:for bmw it is mainly an announcement effect ... it will come out in 10 years, and until then they have time to make more announcements ...


For the turbo steamer yes but for the efficient dynamics it is standard since 2007 ... on the whole range and not optional therefore ...

For the curve I don't understand what you mean ... if you look at the second one, it's reversed: the bigger the delta the less watts. So I don't think we can deduce the behavior of the opposite effect as easily ...
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by Capt_Maloche » 21/02/08, 11:56

Remundo wrote:Hello my favorite "well-trimmed" bearded man! 8)


For efficient thermal sensors even at high temperature, I will have something new soon ... at least as heavy as my PRBC concept as soon as these gentlemen from INPI / Defense give me the green light ... @ +


WOW! I would have said Gaullé : Cheesy:

Remundo wrote: On thermodynamic solar, I have things under the elbow that are waiting ... you will see, it's nice! @ +


I could well imagine a thermal sensor under double glazing with pelletier modules under black painted aluminum "radiators" and on the underside of the cold source side of the finned radiators.

suddenly, we easily reach 60/80 ° c in the sensor for an outside T ° of 20 ° C and according to the curve before we should be able to obtain xx W? with a delat T of 40/60 ° C

Aim at this 320W module, to see http://cgi.ebay.fr/Module-thermoelectri ... dZViewItem

But impossible to find the yield of these cells ... I hear about 5% ?? and 15% in the lab, so no interest compared to the voltaic photo
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OUCH, OUILLE, OUCH, AAHH! ^ _ ^

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